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Finding the Fourth Proportional to 57,208,521.30, 85,812,781.95 and 57,208,521.30

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Solution

The fourth proportional to 57,208,521.30, 85,812,781.95 and 57,208,521.30 is: 85,812,781.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,208,521.30 : 85,812,781.95 = 57,208,521.30 : x
  2. Step 2: Convert to fraction form
    57,208,521.30/85,812,781.95 = 57,208,521.30/x
  3. Step 3: Cross multiply
    57,208,521.30x = 85,812,781.95 × 57,208,521.30
  4. Step 4: Simplify right side
    57,208,521.30x = 4,909,222,363,998,830
  5. Step 5: Solve for x
    x = 4,909,222,363,998,830/57,208,521.30
  6. Step 6: Final answer
    x = 85,812,781.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.